43146020 has 12 divisors (see below), whose sum is σ = 90606684. Its totient is φ = 17258400.

The previous prime is 43146001. The next prime is 43146023. The reversal of 43146020 is 2064134.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14992384 + 28153636 = 3872^2 + 5306^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2157301 = 43146020 / (4 + 3 + 1 + 4 + 6 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 43145983 and 43146001.

It is not an unprimeable number, because it can be changed into a prime (43146023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078631 + ... + 1078670.

It is an arithmetic number, because the mean of its divisors is an integer number (7550557).

Almost surely, 2^43146020 is an apocalyptic number.

It is an amenable number.

43146020 is an abundant number, since it is smaller than the sum of its proper divisors (47460664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43146020 is a wasteful number, since it uses less digits than its factorization.

43146020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157310 (or 2157308 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 43146020 is about 6568.5630087562. The cubic root of 43146020 is about 350.7359209329.

The spelling of 43146020 in words is "forty-three million, one hundred forty-six thousand, twenty".